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Lawrence Engineering Service 250-BT Wood Slide Rule with Leather Case 1930's
Lawrence Engineering Service 250-BT Wood Slide Rule with Leather Case 1930's

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Lawrence Engineering Vtg Slide Rule in Leather Sheath Incl Pickett Instr. Manual
Lawrence Engineering Vtg Slide Rule in Leather Sheath Incl Pickett Instr. Manual

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Lawrence Engineering Pocket Wooden Slide Rule Made In Wabash Indiana USA
Lawrence Engineering Pocket Wooden Slide Rule Made In Wabash Indiana USA

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Vintage Lawrence Engineering Service Wooden Slide Rule Peru Indiana 10"
Vintage Lawrence Engineering Service Wooden Slide Rule Peru Indiana 10"

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Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B
Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B

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Vintage Lawrence Engineering Service Deluxe Slide Rule, original box Made in USA
Vintage Lawrence Engineering Service Deluxe Slide Rule, original box Made in USA

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Lawrence Slide Rule - Made in the USA - Lawrence Engineering Service 250-BT
Lawrence Slide Rule - Made in the USA - Lawrence Engineering Service 250-BT

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Lawrence 10-B 10" Slide Rule with Original Box Made in USA Wooden
Lawrence 10-B 10" Slide Rule with Original Box Made in USA Wooden

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Vintage Lawrence Engineering Service Slide Rule 8-B
Vintage Lawrence Engineering Service Slide Rule 8-B

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Vintage Lawrence Engineering Service Slide Rule Ruler In Box Made in USA
Vintage Lawrence Engineering Service Slide Rule Ruler In Box Made in USA

$15.99

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Lawrence Engineering Service 10-B Wood Slide Rule +Box A B C D CI K Scales
Lawrence Engineering Service 10-B Wood Slide Rule +Box A B C D CI K Scales

$8.00

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LAWRENCE ENGINEERING Wooden FAMOUS SLIDE RULE in Original Box model 10B VTG
LAWRENCE ENGINEERING Wooden FAMOUS SLIDE RULE in Original Box model 10B VTG

$8.75

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Lawrence Engineering Service Wood Slide Rule With Original Box Made in the USA
Lawrence Engineering Service Wood Slide Rule With Original Box Made in the USA

$20.00

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LAWRENCE SLIDE RULE INSTRUCTION BOOKLET: JOHN POLAND: '39
LAWRENCE SLIDE RULE INSTRUCTION BOOKLET: JOHN POLAND: '39

$18.00

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10-B Wooden Slide Rule Lawrence Engineering Service Peru, INDIANA Made In USA
10-B Wooden Slide Rule Lawrence Engineering Service Peru, INDIANA Made In USA

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Vintage Lawrence Slide Rule Made in Indiana USA with Case
Vintage Lawrence Slide Rule Made in Indiana USA with Case

$25.00

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Vintage Lawrence Slide Rule with Cardboard Case -Wood - 10 Inch Works Great
Vintage Lawrence Slide Rule with Cardboard Case -Wood - 10 Inch Works Great

$9.00

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Vtg Lawrence Engineering Wooden Slide Rule USA Architecture Drafting Design
Vtg Lawrence Engineering Wooden Slide Rule USA Architecture Drafting Design

$8.29

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Vintage Lawrence Engineering Slide Rule 10-B - Peru, Indiana Classic! 📐🛠️
Vintage Lawrence Engineering Slide Rule 10-B - Peru, Indiana Classic! 📐🛠️

$19.95

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Vintage Lawrence Engineering 10-B Deluxe Slide Rule with Box Ruler Tool
Vintage Lawrence Engineering 10-B Deluxe Slide Rule with Box Ruler Tool

$7.50

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VTG 1930's LAWRENCE ENGINEERING SERVICE WABASH SMALL SLIDE RULE MADE IN USA
VTG 1930's LAWRENCE ENGINEERING SERVICE WABASH SMALL SLIDE RULE MADE IN USA

$14.99

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Vintage 1939 “Lawrence” Slide Rule Instruction Book - Master the Art of Math! 📖
Vintage 1939 “Lawrence” Slide Rule Instruction Book - Master the Art of Math! 📖

$12.99

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Vintage Lawrence Engineering Service Peru Indiana Wood Slide Rule - Model 10-B
Vintage Lawrence Engineering Service Peru Indiana Wood Slide Rule - Model 10-B

$12.00

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Vintage Lawrence Slide Rule 250-BT and Case.
Vintage Lawrence Slide Rule 250-BT and Case.

$19.99

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Lawrence Deluxe Slide Rule 10-B Made In he U.S.A with Case
Lawrence Deluxe Slide Rule 10-B Made In he U.S.A with Case

$6.29

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Vintage Slide Ruler by Lawrence Engineering Service Slide Rule 10-B, In Box
Vintage Slide Ruler by Lawrence Engineering Service Slide Rule 10-B, In Box

$10.99

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Vintage 'Lawrence" Slide Rule Instruction Book 1939
Vintage 'Lawrence" Slide Rule Instruction Book 1939

$16.98

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Vintage LAWRENCE No. 10-B Slide Rule with original case.
Vintage LAWRENCE No. 10-B Slide Rule with original case.

$14.95

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Vintage Lawrence Slide Rule w/ Case Lawrence Engineering Service e3
Vintage Lawrence Slide Rule w/ Case Lawrence Engineering Service e3

$13.72

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Lawrence Engineering Slide Rule, Frederick Post Chicago SR Bruning drafting kit
Lawrence Engineering Slide Rule, Frederick Post Chicago SR Bruning drafting kit

$19.00

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VTG Lawrence 10-B Deluxe Wood Slide Rule w/ Original Box Engineering Nerd Math
VTG Lawrence 10-B Deluxe Wood Slide Rule w/ Original Box Engineering Nerd Math

$14.95

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Vintage 1940s Lawrence Engineering Service 250-BT Wood Slide Rule USA with Case
Vintage 1940s Lawrence Engineering Service 250-BT Wood Slide Rule USA with Case

$10.00

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Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B
Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B

$15.00

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Slide Rule Lawrence Engineering Service wabash Indiana In Pat Pend Vintage a
Slide Rule Lawrence Engineering Service wabash Indiana In Pat Pend Vintage a

$14.95

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Lawrence Slide Rule 250-BT 1940’s Vintage Lawrence Engineering Service
Lawrence Slide Rule 250-BT 1940’s Vintage Lawrence Engineering Service

$16.99

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Boxed-Lawrence Engineering Pocket Wood Slide Rule, Made In Peru, Indiana USA
Boxed-Lawrence Engineering Pocket Wood Slide Rule, Made In Peru, Indiana USA

$15.95

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Lawrence Engineering Service (Peru Indiana) slide rule - vintage 10.5" wood #10B
Lawrence Engineering Service (Peru Indiana) slide rule - vintage 10.5" wood #10B

$9.99

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B15 Lawrence 10b DeLuxe Wood Slide Rule with Cardboard Box
B15 Lawrence 10b DeLuxe Wood Slide Rule with Cardboard Box

$8.00

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Lawrence DeLuxe Slide Rule Lawrence Engineering Service Peru Indiana DD458
Lawrence DeLuxe Slide Rule Lawrence Engineering Service Peru Indiana DD458

$14.50

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Vtg The Quick and Easy "Lawrence" Slide Rule Instruction Book, (PB, 1939)
Vtg The Quick and Easy "Lawrence" Slide Rule Instruction Book, (PB, 1939)

$15.35

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Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE
Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE

$8.95

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Vintage Lawrence Slide Rule w/ Case Lawrence Engineering Service
Vintage Lawrence Slide Rule w/ Case Lawrence Engineering Service

$8.00

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VTG LAWRENCE 10" ENGINEERING SLIDE RULE~INDIANA~PAT. PENDING~USA~ORIGINAL BOX
VTG LAWRENCE 10" ENGINEERING SLIDE RULE~INDIANA~PAT. PENDING~USA~ORIGINAL BOX

$15.00

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1940 VINTAGE LAWRENCE ENGINEERING SLIDE RULE WOOD WOODEN
1940 VINTAGE LAWRENCE ENGINEERING SLIDE RULE WOOD WOODEN

$9.99

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Lawrence Engineering Service Wooden Slide Rule - Peru, INDIANA Ruler USA
Lawrence Engineering Service Wooden Slide Rule - Peru, INDIANA Ruler USA

$10.99

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VTG Lawrence Engineering Service | Wood Slide Rule With Case | 10-B | Indiana
VTG Lawrence Engineering Service | Wood Slide Rule With Case | 10-B | Indiana

$14.99

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Vintage Slide Rule Lawrence 1939 Instruction Book Booklet
Vintage Slide Rule Lawrence 1939 Instruction Book Booklet

$3.00

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Vintage Slide Ruler by Lawrence Engineering Service Slide Rule 10-B, In Box D8
Vintage Slide Ruler by Lawrence Engineering Service Slide Rule 10-B, In Box D8

$9.99

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Vintage 30s Lawrence Engineering Wood Service Slide Rule With Box NO READER
Vintage 30s Lawrence Engineering Wood Service Slide Rule With Box NO READER

$2.99

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Vtg The Quick and Easy "Lawrence" Slide Rule Instruction Book, (PB, 1940) r
Vtg The Quick and Easy "Lawrence" Slide Rule Instruction Book, (PB, 1940) r

$7.95

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Vintage LAWRENCE 10 inch SLIDE RULE ~ White Face On Hardwood ~ Made in U.S.A.
Vintage LAWRENCE 10 inch SLIDE RULE ~ White Face On Hardwood ~ Made in U.S.A.

$9.99

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Lawrence DeLuxe Slide Rule Lawrence Engineering Service Peru, Indiana
Lawrence DeLuxe Slide Rule Lawrence Engineering Service Peru, Indiana

$25.99

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Vintage Lawrence Slide Rule - Made in the USA - Lawrence Engineering Service
Vintage Lawrence Slide Rule - Made in the USA - Lawrence Engineering Service

$9.95

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Vtg LAWRENCE 10 Inch SLIDE RULE Made in USA Peru Indiana Mathmatic Engineer Tool
Vtg LAWRENCE 10 Inch SLIDE RULE Made in USA Peru Indiana Mathmatic Engineer Tool

$9.99

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PICKETT MODEL N902-ES W/CASE SLIDE RULE & LAWRENCE ENGINEERING
PICKETT MODEL N902-ES W/CASE SLIDE RULE & LAWRENCE ENGINEERING

$12.99

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Vintage Wood Slide Rule Lawrence Engineering Peru Indiana with Original Case
Vintage Wood Slide Rule Lawrence Engineering Peru Indiana with Original Case

$9.99

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1939 Lawrence Slide Rule With Instruction Book
1939 Lawrence Slide Rule With Instruction Book

$9.28

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Vintage 8" Wooden Slide Rule with Box, Lawrence Engineering Service, Wabash, IND
Vintage 8" Wooden Slide Rule with Box, Lawrence Engineering Service, Wabash, IND

$19.00

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Lawrence Engineering 10-B Deluxe Slide Rule with Box Vintage Ruler Tool
Lawrence Engineering 10-B Deluxe Slide Rule with Box Vintage Ruler Tool

$6.30

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Lawrence Engineering Service Vintage 10-B Wood Slide Rule
Lawrence Engineering Service Vintage 10-B Wood Slide Rule

$9.99

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Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B
Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B

$12.95

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Vintage Lawrence Engineering Service Wooden Slide Rule with Case
Vintage Lawrence Engineering Service Wooden Slide Rule with Case

$7.00

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Lawrence Engineering Service Wabash Indiana Slide Rule Wood Wooden 1940’s
Lawrence Engineering Service Wabash Indiana Slide Rule Wood Wooden 1940’s

$29.75

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Vintage SLIDE RULE Lawrence Engineering Service 250-BT Wood with Case USA
Vintage SLIDE RULE Lawrence Engineering Service 250-BT Wood with Case USA

$19.99

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Vintage LAWRENCE Deluxe SLIDE RULE - Wood - Coyne Electrical School
Vintage LAWRENCE Deluxe SLIDE RULE - Wood - Coyne Electrical School

$12.17

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Vintage 30s Lawrence Engineering Wood Service Slide Rule With Box
Vintage 30s Lawrence Engineering Wood Service Slide Rule With Box

$15.00

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Vtg LAWRENCE 10 in SLIDE RULE White Face On Hardwood Made Peru Indiana U.S.A.
Vtg LAWRENCE 10 in SLIDE RULE White Face On Hardwood Made Peru Indiana U.S.A.

$12.00

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Lot of 4 Slides Rules & Cases K&E, Post Versalog, Sterling, Lawrence Engineering
Lot of 4 Slides Rules & Cases K&E, Post Versalog, Sterling, Lawrence Engineering

$20.00

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Vintage Slide Ruler by Lawrence Engineering Service Slide Rule 10-B, In Box
Vintage Slide Ruler by Lawrence Engineering Service Slide Rule 10-B, In Box

$9.72

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Lawrence 10 inch Slide Rule
Lawrence 10 inch Slide Rule

$16.95

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Lawrence 10 inch Slide Rule
Lawrence 10 inch Slide Rule

$15.00

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Vintage Lawrence Slide Rule Made in the USA Lawrence Engineering Service 10-B
Vintage Lawrence Slide Rule Made in the USA Lawrence Engineering Service 10-B

$9.99

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Vintage LAWRENCE DELUXE Slide Rule In Original Case Made in Peru Indiana USA
Vintage LAWRENCE DELUXE Slide Rule In Original Case Made in Peru Indiana USA

$8.99

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Vintage Lawrence Engineering Service Slide Rule
Vintage Lawrence Engineering Service Slide Rule

$19.00

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Vintage Wood Slide Rule by Lawrence Engineering Service, Peru, Indiana EUC
Vintage Wood Slide Rule by Lawrence Engineering Service, Peru, Indiana EUC

$5.99

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Vintage Pat Pend Lawrence Engineering Service Indiana Slide Rule In Case
Vintage Pat Pend Lawrence Engineering Service Indiana Slide Rule In Case

$12.45

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Vintage Lawrence Engineering Slide Rule With Case Peru Indiana USA
Vintage Lawrence Engineering Slide Rule With Case Peru Indiana USA

$9.95

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Lawrence Slide Rule w Original Box & Instructions Vintage
Lawrence Slide Rule w Original Box & Instructions Vintage

$12.50

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Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B Made In USA!
Vintage LAWRENCE ENGINEERING SERVICE Small Wooden 8" SLIDE RULE 8-B Made In USA!

$22.22

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Lawrence Engineering Service Vintage 10-B Wood Slide Rule
Lawrence Engineering Service Vintage 10-B Wood Slide Rule

$9.60

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1940s Wood Slide Rule Leather Case No Slide Lawrence Engineering Service 250-BT
1940s Wood Slide Rule Leather Case No Slide Lawrence Engineering Service 250-BT

$14.95

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VINTAGE LAWRENCE ENGINEER SERVICE 10-B WOODEN SLIDE RULE PERU, IN - MADE IN USA!
VINTAGE LAWRENCE ENGINEER SERVICE 10-B WOODEN SLIDE RULE PERU, IN - MADE IN USA!

$7.98

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VINTAGE LAWRENCE ENGINEERING SERVICE, WASBASH IND WOODEN SLIDE RULER Made In USA
VINTAGE LAWRENCE ENGINEERING SERVICE, WASBASH IND WOODEN SLIDE RULER Made In USA

$8.50

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Vintage Lawrence Engineering 10-B Deluxe Slide Rule W/Box USA ~ Missing Glass
Vintage Lawrence Engineering 10-B Deluxe Slide Rule W/Box USA ~ Missing Glass

$4.55

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Vintage Lawrence Engineering Service Slide Rule All Wood Peru Indiana 10-B
Vintage Lawrence Engineering Service Slide Rule All Wood Peru Indiana 10-B

$8.00

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Vintage Lawrence DeLuxe Slide Rule 10-B with Box MADE IN USA
Vintage Lawrence DeLuxe Slide Rule 10-B with Box MADE IN USA

$11.99

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VTG Slide Rule Lot Wood Slide Rule USA Lawrence Engineering, No. 27, No. 587
VTG Slide Rule Lot Wood Slide Rule USA Lawrence Engineering, No. 27, No. 587

$32.00

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Vintage Wood Lawrence Slide Rule with Paper Sleeve
Vintage Wood Lawrence Slide Rule with Paper Sleeve

$6.99

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Vintage Lawrence Slide Rule With Cardboard Case -Wood - 10 Inch
Vintage Lawrence Slide Rule With Cardboard Case -Wood - 10 Inch

$9.99

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Vintage LAWRENCE ENGINEERING Wooden FAMOUS SLIDE RULE in Original Box model 10B
Vintage LAWRENCE ENGINEERING Wooden FAMOUS SLIDE RULE in Original Box model 10B

$8.00

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Vintage Lawrence Deluxe Wooden Slide Rule
Vintage Lawrence Deluxe Wooden Slide Rule

$12.00

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Vintage LAWRENCE Deluxe SLIDE RULE - Wood - Coyne Electrical School
Vintage LAWRENCE Deluxe SLIDE RULE - Wood - Coyne Electrical School

$19.99

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Lawrence Engineering Service Peru Indiana Slide Rule 10-B - Wooden - Made in USA
Lawrence Engineering Service Peru Indiana Slide Rule 10-B - Wooden - Made in USA

$12.34

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Vintage Pat Pend Lawrence Deluxe Engineering Service Indiana Slide Rule In Case
Vintage Pat Pend Lawrence Deluxe Engineering Service Indiana Slide Rule In Case

$14.23

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Vintage Lawrence Engineering Service Slide Rule 10-B
Vintage Lawrence Engineering Service Slide Rule 10-B

$13.95

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Lawrence Engineering 10-B Deluxe Slide Rule with Box Vintage Ruler Tool
Lawrence Engineering 10-B Deluxe Slide Rule with Box Vintage Ruler Tool

$10.79

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Lawrence Engineering Service (Peru Indiana) slide rule - vintage 10.5" wood #10B
Lawrence Engineering Service (Peru Indiana) slide rule - vintage 10.5" wood #10B

$9.75

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Vintage Lawrence Slide Rule w/ Case Lawrence Engineering Service
Vintage Lawrence Slide Rule w/ Case Lawrence Engineering Service

$14.00

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Lawrence Engineering Vintage 10-B Wooden Slide Rule Made in USA Peru Indiana
Lawrence Engineering Vintage 10-B Wooden Slide Rule Made in USA Peru Indiana

$19.99

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Antique LAWRENCE ENGINEERING SERVICE WOOD 8” SLIDE RULE WABASH INDIANA USA RARE
Antique LAWRENCE ENGINEERING SERVICE WOOD 8” SLIDE RULE WABASH INDIANA USA RARE

$45.00

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